package com.itheima.arithmeticoperator;
//导包
import java.util.Scanner;

public class ArithmeticoperatorDemo3 {
    //主入口
    public static void main(String[] args) {
        //++ 和 --
        int a = 1;
        //
        a++;
        System.out.println(a);
        ++a;
        System.out.println(a);
        a--;
        System.out.println(a);
        --a;
        System.out.println(a);
    }
}
